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Whole body vibration and cardiovascular
respond
The application of new scientifc knowledge on the practice of
physical therapy continue to challenge our capability to scientifcally
test the effcacy of products designed to increase and further to improve
physical performance and health. Whole body vibration (WBV)
module represent, can be example of this new technology. Numerous
studies provide inside of the biomechanical and physiological effects
of WBV on human body. However, we are faced with more questions
than answers when it comes to WBV well-grounded evidence.
Our review provides the scientifc basis, rationale that is necessary
before incorporation of WBV into a physical therapy treatment with
a valid, reliable positive declaration of success. It has been shown
that mechanical oscillatory-cycloid vibration, applied to the muscle
belly or tendons are able to stimulate sensory receptors. However, the
effect of vibration depend on the properties of the muscle, frequency
of vibration, level of pre-contraction, position of the body etc.
Evidence for justifcation can be extrapolated from the data of
1
where
after completion of 12-weeks training program, blood fow and body
composition in patients with type 2 diabetes mellitus (T2DM) where
analyzed. Results pointing to the conclusion that heart rate and blood
fow signifcantly increased after WBV compare with control. Also,
waist hip ratio and body fat were positively altered. Authors concluded
that WBV can present effective means for incrementation of lower
extremities blood fow and also lower adiposity in patient with T2DM.
Other investigation
2
compare WBV and moist heat on lower extremity
skin temperature and skin blood fow in normative older subjects.
Mean skin blood fow following a 10 minutes inactive vibration
coupling with moist heat exhibit marked difference in comparison
to the control group, active vibration, and basic massaging heating
pad. Therefore, authors claim that the combination of moist heat
and passive vibration is an unexplored path that markedly elevates
skin blood fow, while only modestly increasing skin temperature
in the lower extremity of normative older cohorts. Moreover,
3
and
his colleagues attempt to assess the effectiveness of low amplitude
extra luminally applied 50 Hz Localized Low Frequency Vibration
(LLFV) in dissolution of 1hour old clots immersed in Heparinized
Saline. Results revealed that LLFV yielded statistically superior clot
dissolution (25%) in comparison to the non-vibrated control (5%)
(p<0.0003). Given the results of this study LLFV may hold potential
as a safe and practical adjunct to clot disruptive drug therapy in frst
line clearance of acute arterial thrombosis in the emergency setting.
However, LLFV is not recommended in treatment of Deep Vein
Thrombosis, as sudden mobilization of clot in this scenario could lead
to a worsening condition. In another study
4
was demonstrated that 3
months of WBV exposure had a plausible infuence on arterial stiffness
in adult men and could be considered as a complementary exercise.
This is consistent with
5
suggesting, that exercise training program
that incorporates WBV, diminish arterial rigidity in postmenopausal
women with pre-hypertension and hypertension. These researchers
were able to demonstrate improved systemic and lower extremities
arterial stiffness, favorable blood pressure and muscle strength. That
on the other hand can reduce cardiovascular and disability risks in
particular cohorts.
Moreover, similar to a previous investigation
6
examined if WBV
is able to enhance skin blood fow and nitric oxide (NO) blood
concentration in individuals with restless legs syndrome (RLS), where
data were match to comparable sample. The obtain results pointing to
the conclusion that blood fow was signifcantly higher in RLS group
compare to control. There was no improvement in NO concentration
from blood drown at the antecubital fossa, within subjects and between
groups. Nevertheless, what can be gathered from this investigation is
that more research should be done to elucidate if RLS subjects will
react differently to WBV in different times of the day. Moreover,
autonomous neural system activity should be assessed as well.
Further evidence in favor of WBV came from
7
where authors
analyzed popliteal artery mean blood velocity, peak blood velocity,
arterial resting diameter and blood fow after 12-weeks of simultaneous
implementation of WBV and electromyo-stimulation in patients with
spinal cord injury. In addition, muscle thickness (gastrocnemius)
and bone mineral density in the neck were also analyzed. We can
conclude that the experimental group experience increased arterial
resting diameter, blood fow, gastrocnemius muscle thickness when
compare to baseline values. Authors claim that the interplay of WBV
and electromyo-stimulation can be acknowledged as encouraging
alternative to reverse the musculoskeletal atrophy and enhance
peripheral vascular characteristics in spinal cord injury patients.
Additional evidence come from
8
where the cardiac patients were
subject to 3-months, 30- minute bout of low frequency vibration. These
researchers were able to demonstrate that low frequency vibration can
MOJ Sports Med. 2018;2(5):137‒138. 137
© 2018 Uher. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits
unrestricted use, distribution, and build upon your work non-commercially.
Vibrotherapy and cardiovascular health
Volume 2 Issue 5 - 2018
Ivan Uher
Institute of Physical Education and Sport, P J Safarik University,
Kosice Slovakia
Correspondence: Ivan Uher, Institute of Physical Education
and Sport, Pavol Jozef Safarik University, Slovakia, Tel: 421 9153
16532, Email ivan.uher@upjs.sk
Received: August 03, 2018 | Published: September 19, 2018
Abstract
Cardiovascular disease (CVD) is the most prevalent cause of death in economically
developed countries. This alarming situation becomes a major issue of global concern.
The burden of CVD can be ameliorated by careful risk reduction and the search for
viable therapeutic options. The goal of this mini review is to summarize selected studies
that have examined vibrotherapy and its potential for improving cardiovascular health.
Although many questions remain, presented review highlights some of the potential
benefits of vibrotherapy on cardiovascular health.
Keywords: cardiovascular disease, whole body vibration, health, quality of life,
intervention
MOJ Sports Medicine
Mini Review
Open Access